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The base model X1 Carbon has a 14-inch (360 mm) TN screen with a resolution of 1600 by 900 pixels. The X1 Carbon weighs 1.35 kilograms (3.0 lb) and measures 12.8 inches (330 mm) by 8.94 inches (227 mm) by 0.68 inches (17 mm) (at its thickest). The X1 Carbon's roll cage is made of light-weight carbon-fiber [17] and has a matte black finish. [15]
ThinkPad is an American line of business-oriented laptop and tablet computers produced since 1992. The early models were designed, created and manufactured by International Business Machines (IBM) until it sold its PC business to Lenovo in 2005; since 2007, all new ThinkPad models have been branded Lenovo instead [5] and the Chinese manufacturer has continued to develop and sell ThinkPads to ...
When the carbon equivalent is between 0.40 and 0.60 weld preheat may be necessary. When the carbon equivalent is above 0.60, preheat is necessary, postheat may be necessary. The following carbon equivalent formula is used to determine if a spot weld will fail in high-strength low-alloy steel due to excessive hardenability: [2]
The typical thickness to width ratio of a plate structure is less than 0.1. [citation needed] A plate theory takes advantage of this disparity in length scale to reduce the full three-dimensional solid mechanics problem to a two-dimensional problem. The aim of plate theory is to calculate the deformation and stresses in a plate subjected to loads.
The ThinkPad T series is a line of notebook computers manufactured by Lenovo as part of the ThinkPad family. The T series is officially the flagship ThinkPad product, offering high-performance computers aimed at businesses and professionals. [1]
It is also known as the strength-to-weight ratio or strength/weight ratio or strength-to-mass ratio. In fiber or textile applications, tenacity is the usual measure of specific strength. The SI unit for specific strength is Pa ⋅ m 3 / kg , or N ⋅m/kg, which is dimensionally equivalent to m 2 /s 2 , though the latter form is rarely used.
Weight on bit [1] (WOB), as expressed in the oil industry, is the amount of downward force exerted on the drill bit and is normally measured in thousands of pounds.. Weight on bit is provided by drill collars, which are thick-walled tubular pieces machined from solid bars of steel, usually plain carbon steel but sometimes of nonmagnetic nickel-copper alloy or other nonmagnetic premium alloys.
The tensile yield strength of A514 alloys is specified as at least 100 ksi (689 MPa) for thicknesses up to 2.5 inches (63.5 mm) thick plate, and at least 110 ksi (758 MPa) ultimate tensile strength, with a specified ultimate range of 110–130 ksi (758–896 MPa). Plates from 2.5 to 6.0 inches (63.5 to 152.4 mm) thick have specified strength of ...
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